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Mr Hamilton said Backyard Kiwi was a "community-driven conservation project".
"We were asked to come to the Wild Dunedin festival to tell people what worked for us," he said.
It was a "privilege" to share his ideas with Dunedin people and Orokonui was "brilliant", he said.
"It was a brilliant example of what you can do to help nature help itself."
Later in the day illustrator Heather Hunt taught children how to draw kiwi at Orokonui.